Superheat locomotive



3 SHEETS-SHEET I H. M, WILLIAMS ET AL. SUPERHEAT LocoMoTI VE.

FILED MAY 26, 15H94 Feb. 6, 1923.

H. M. WILLIAMS ET AL,

SUPERHEAT LocoMoT VE.

3 SHEETS-SHEET 2 FILED MAY 26, 1919.

n ATTORNEY Feb. 6, 1923.

M, WILLIAMS ET AL,

vsists in a device as Patented Feb. ti, i923,

HARRY lY.

WILLEM/IS, OF LITTLE ROCK, ARKANSAS, AND JOHN W. DEANpDECEASED,

LATE 0F 'LITTLE ROCK', ARKANSAS, BY RUTH L. DEAN, ADMINISTRATRX.

SUPER/HEAT LOCOMOTIVE.

Application filed May 26,

To all whom. t may concern:

Be it known that anni' M. lViniiiAMs, a citizen of the United States'..residing1 at Little lock. county oi lulaski, and State of Arkansas, and Joins' lV. DEAN, deceased, late a citizen of the United States, and a resident ofi Little Rock, county of Pulaski, and State of Arkansas, have invented certain new and useful lmprovements in Superheat Locomotives, of which the following is a speciiication.

Our invention relates to locomotives and particularly to superheat locomotives. 'More especially our invention relates to a superheat locomotive particularly adapted for use in conjunction with a Weed and grass burner such as *forms the subject matter of ourllatent No. 1,238,861, granted September Ll.. 1917, and ot' a .co-pending application Serial No. 307,471.

rlhe object of our invention is to provide a locomotive for the purpose above mentioned` of such construct-ion that the quantity of superheated steam supplied to the engine cylinders and to the burner may be regulated as found desirable in use so that the speed of the locomotive may be governed without increasing or vdiminishing the necessary supply kof steam to the burner or burners. Other objects will appear hereinafter.

With these objects in view our invention consists generally in a locomotive equipped with a superheater supplied. in the usual manner from the steam dome, the usual main throttle controlling. the supply of steam to the superheater, auxiliary throttles controlling the supply of superheated steam to the engine cylinders, and a supply pipe for the burners. Oui; invention iurther consists in means whereby the steam may be sluit ed from the steam chests of the cylinders through the main supply pipes and valves and supplied through a re stricied valved by-pass when the burner is in operation. Our invention further conabove mentioned further characterized by a valve in the supply pipe to the burners. Our invention further consiste in various details of construction and arrangements of parts as will be fully described hereinafter and particularly pointed out in the claim.

Our' invent-ion will be more readily understood by reference to the accompanying 1919. Serial No. 299,981.

drawings forming a part of this specification.r and in Which Figure 1 is a longitudinal section of the .forward portion of a, locomotive emb0dying our invention, portions being illustrated 1n elevation.

Figure 2 is a transverse vert-ical section on the line 2--2 of Figure 1.

Figure 3 is a front elevation of a locomotive embodying a slightly modified form of the invention, illustrated upon an en-. larged scale, and

Figure 4 is a side elevation of the same upon a reduced scale.

Referring; now to the drawings. 3 indicates the boiler oi a locomotive having the usual tire tubes a and steam dome 5. Foru ward of the boiler is the usual smoke box 6 equipped witl a smoke stack 7.

Arranged in the smoke box 6 is a Superheater conu'irising` a header 8 divided as at 9 into a chamber 10 for the saturate steam and a chamber 11 for the superheated steam. Suitable pipes 12 extend from the chamber 1 to the chamber 11 and for a greater portion of their length are arranged Within the firetubes 4 as indicated. The usual steam pipe 13 supplies steam to the superheater from the dome 5 and is equipped with the ordinary throttle 111. lt is to be understood that our invention is not liniited to the specific form of superheater shown, but that this feature may be varied as desired.

Extendingfrom the superheater are the steam pipes lleading to the steam chests 16 of the engine cylinders. interposed in each of the pipes 15 is' an auxiliary throttle 17, controlled through suitable, mechanism 18 from the engine cab. A steam pipe 19 is provided for conducting superheated steam toja coupling or connection 20 for a flexible pipe or hose 21 adapted to extend to the grass burners. This may extend from the chamber 11 of 00 the superheater header, as shown in Figures 1 and 2 of the drawings, or may extend from one of the pipes 15, as shown in Fig.- ures 3 and 4. Interpused in the pipe 19 is a suitable valve 22, preferably a globe valve 105 as illustrated. When lthe, burner is in operation, it is desirable that the locomotive shall pass slowly over the track to accomplish the desired destruction of Weeds and grass, or the melting of' ice and snow. At 110 'Spective valve 17.

such time the superheeted' steam is supplied to the vcylinders through a Toy-pass 24,

in the by-pass supply pipe 25,*and this is controlled by mechanism 27 from thevceb.

1 'ofthe patent 1o L by the Bngineex after tie l?.

' With the device The burners vforming the subject mattei* ed are devices vfor projecting jet-s ofv heated fluid end vapor downwardy es the device passes along bed or A for removing ice` and snow from the tracks,

switches, etc. -t is` obviously necessary that when superheeted steam, is-em played as tl1e 'burn ing. medium, so'icient steam must *be4 supplie to the burners, ifo accomplish the desired( result and that e greater vsup};)Iy'tha1 n is' necessary must be avoided to prevent Weste. It is aise obvons that the speed withwhich the device passes oven-the vtracks muszoeundeij the control of, the engineer wither/1j; changing the volume' of'steem above described the quentity ofsteamenpplied to the'biimes may be regula'ted by means of the -velve 22', the mein throttle 1.4 being left open; and the speed of the device may then be reguletefi bymeens of the valve having-'closed the auxiliary tm "The foznlof device shown in Fig'nees i and A2 requires tapping bhe pipe 19in@ the Superheiter header, bu by using the form shown in Figures 3 'or the pipes and application above speci-` with Yone of supplied to the burners,l

end e no changes are made within the locomotive. The suppiy pipe for l5 and the by-p'ass supply pipe 25 is iepped to the other pipe l5; thus in a, measure balancing the. steam supply throughthe pipes l5. e clan/nz A locomotive including the boiler, smoke Vbox end cylinder seeni chests, in combination with a` superheeter,

'pipe connecting said boiler the track inordeito bur-n or `h destroythe grass and vweeds along the roeda steam supply and said superenter, n. znain'throtle therein, steam pipes connecting seid eupei'heeater and said'steam chests, auxiliary throttles arranged in said pipes, e. `crees-connection communicating with eac-h of said steam chests, a supply pipe for seid cross-connection communicating seid superheae steam pipes above the throttle therein, e'valve in the lestseicl pipe, e steam pipe coupling for e burner, and4 Vpipe 'for supplying super-` heeied steam there'eo, seid pipe being connected to the opposite superhee; steam pipe from inet o which the crossfconneotion- -suppy pipe 1s connected, land above the the burners is attacliedto one y 

